WBLPR

This function evaluates the Weibull probability density function.

Function Return Value

WBLPR — Function value, the value of the probability density function. (Output)

Required Arguments

X — Argument for which the Weibull probability density function is to be evaluated. (Input)

A — Scale parameter. (Input)

B — Shape parameter. (Input)

FORTRAN 90 Interface

Generic: WBLPR (X, A, B)

Specific: The specific interface names are S_WBLPR and D_WBLPR.

FORTRAN 77 Interface

Single: WBLPR (X, A, B)

Double: The double precision name is DWBLPR.

Description

The function WBLPR evaluates the Weibull probability density function with scale parameter A and shape parameter B, defined

 

Example

In this example, we evaluate the Weibull probability density function at X = 1.5, A = 1.0, B = 2.0.

 

USE UMACH_INT

USE WBLPR_INT

IMPLICIT NONE

INTEGER NOUT

REAL X, A, B, PR`

CALL UMACH(2, NOUT)

X = 1.5

A = 1.0

B = 2.0

PR = WBLPR(X, A, B)

WRITE (NOUT, 99999) X, A, B, PR

99999 FORMAT (' WBLPR(', F4.2, ', ', F4.2, ', ', F4.2, ') = ', F6.4)

END

Output

 

WBLPR(1.50, 1.00, 2.00) = 0.3162